if-statement Getting started with if-statement Usage of relational operators

Example

A statement is usually a test on a variable or the return value of a function. To test those values, we can use some relational operators:

Operator	Meaning	Example
==	Equal to	1 == 1 is TRUE, 1 == 2 is FALSE
!=	Not equal to	1 != 2 is TRUE, 1 != 1 is FALSE
<	Less than	1 < 2 is TRUE, 2 < 1 is FALSE
>	Greater than	2 > 1 is TRUE, 1 > 2 is FALSE
<=	Less than or equal to	2 <= 2 is TRUE, 2 <= 3 is TRUE, 3 <= 2 is FALSE
>=	Greater than or equal to	2 >= 2 is TRUE, 3 >= 2 is TRUE, 1 >= 2 is FALSE

If we are taking the following example:

a = 5;

if(a < 6)
{
    // Some code
}

Here the value of the variable a is inferior to 6. So the statement is true: the code will be executed.